Company lists · Data refreshed November 2026

Top 25 Slim hole drilling contractors worldwide

RevenueBase identified 393 company matches for slim hole drilling contractors worldwide as of November 2026 and tracks 22,686 professional contacts across them, including 3,773 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers company matches for slim hole drilling contractors worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026. Country and city lists for slim hole drilling contractors follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
393Companies
22,686Contacts tracked
3,773Verified emails
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The 25 largest slim hole drilling contractors worldwide

Ranked by team size
Top 25 of 393 company matches for slim hole drilling contractors worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchCalgary, TX, CanadaHQ recorded Nov 6, 20265,001-10,0002,730 contacts →

Exact match

“Precision is a leading provider of safe and High Performance, High-Value services to the oil and gas industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchMoncton, NB, CanadaHQ recorded Nov 6, 20261,001-5,0001,607 contacts →

Exact match

“Major Drilling Group International Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchAmsterdam, NetherlandsHQ recorded Nov 6, 20261,001-5,0001,185 contacts →

Exact match

“HMH is a premier drilling solutions provider - delivering a broad portfolio of products and services that are designed to be the safest and most efficient in the industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchAte, BelgiumHQ recorded Nov 6, 20261,001-5,000690 contacts →

Exact match

“Geotec S.A, empresa de perforación perteneciente a Boyles Bros, fue fundado en 1963 posicionándose como una empresa líder en la industria minera peruana.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchKuala Lumpur, MalaysiaHQ recorded Nov 6, 2026501-1,000577 contacts →

Exact match

“Velesto Energy Berhad is a Malaysia-based multinational provider of services for the upstream oil and gas sector.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchOklahoma City, OK, United StatesHQ recorded Nov 6, 20261,001-5,000498 contacts →

Exact match

“As the largest privately-held domestic land drilling contractor in the United States, Cactus provides competent, motivated personnel utilizing premium equipment to meet and exceed…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchPodenzano, ItalyHQ recorded Nov 6, 2026501-1,000492 contacts →

Exact match

“PETREVEN is a low impact Drilling Contractor (established in 1998 in Venezuela).”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchNewcastle, AB, United StatesHQ recorded Nov 6, 2026501-1,000477 contacts →

Exact match

“Only Thru Tubing Solutions offers the specialized downhole equipment and services to deliver the results you need, right when you need them.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchVancouver, BC, CanadaHQ recorded Nov 6, 2026201-500375 contacts →

Exact match

“ENERGOLD DRILLING is a leading global drilling solutions company that services the mining, infrastructure, and geothermal sectors in the Americas, Africa, and Europe.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchBrisbane, AustraliaHQ recorded Nov 6, 2026201-500364 contacts →

Exact match

“Welcome to Lucas!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchHouston, TX, United StatesHQ recorded Nov 6, 2026201-500306 contacts →

Exact match

“Corporate Overview Independence Contract Drilling was formed in 2011 as a vertically integrated premium land drilling services provider.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchNew Iberia, LA, United StatesHQ recorded Nov 6, 2026501-1,000304 contacts →

Exact match

“LEAM Drilling Systems, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchCalgary, AB, CanadaHQ recorded Nov 6, 2026201-500298 contacts →

Exact match

“Cathedral Energy Services (TSX:CET) is a trusted partner to North American energy companies requiring high performance directional drilling services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchHochiminh, VietnamHQ recorded Nov 6, 20261,001-5,000282 contacts →

Exact match

“The Pioneer of Drilling Industry in Vietnam - Belongs to PetroVietnam Corporation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchSmithers, ON, CanadaHQ recorded Nov 6, 2026501-1,000219 contacts →

Exact match

“With a focus on preparedness, Hy-Tech Drilling is the long-term partner you can trust to ensure safe and seamless execution, giving you peace of mind.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchEl Reno, OK, United StatesHQ recorded Nov 6, 20261,001-5,000205 contacts →

Exact match

“Nomac Drilling is now Patterson-UTI.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchVal-d'or, CanadaHQ recorded Nov 6, 2026501-1,000189 contacts →

Exact match

“Orbit Garant Drilling Inc.( TSX:OGD) is one of the largest drilling companies in Canada, providing services to large mining companies, as well as intermediate and junior mining…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchUnited StatesHQ recorded Nov 6, 2026501-1,000177 contacts →

Exact match

“Gulf Drilling (GD) is a fully owned subsidiary of MB Petroleum Services, a 100% Omani company that provides advanced drilling solutions to the oil and gas industry, formed with…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchSantiago, ChileHQ recorded Nov 6, 2026201-500174 contacts →

Exact match

“Usamos, mantenemos y reconstruimos perforadoras de superficie.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchMuscat, OmanHQ recorded Nov 6, 2026201-500172 contacts →

Exact match

“NDSC is a Drilling Rig Service provider, variety of rigs starting from core drilling to Heavy Drilling Rigs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchCalgary, AB, CanadaHQ recorded Nov 6, 2026201-500169 contacts →

Exact match

“Founded in 2005, Pacesetter Directional Drilling helps the world’s leading explorers and producers achieve their most ambitious directional drilling goals through cutting-edge…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchSeventeen Mile Rocks, AustraliaHQ recorded Nov 6, 2026501-1,000168 contacts →

Exact match

“Mitchell Services is an ASX listed drilling services provider and is Australia’s most diverse drilling company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchTyler, TX, United StatesHQ recorded Nov 6, 2026201-500137 contacts →

Exact match

“SCANDRILL, INC.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchSandsli, NorwayHQ recorded Nov 6, 202651-200131 contacts →

Exact match

“Island Drilling was established in 2006 by industry veterans and Island Offshore, the leading global player in well intervention, to build and own special purpose semi-submersible…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchMendoza, ArgentinaHQ recorded Nov 6, 202651-200116 contacts →

Exact match

“Drilling Company”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 393 slim hole drilling contractors worldwide

See the full list, filter by size, metro and specialty, and access 3,773 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Slim hole drilling contractors worldwide at a glance

As of Nov 6, 2026
16.6%Verified-email coverage
57.7Average contacts per company
11-50Median size (employees)
2.8%Largest-city concentration · Houston
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
107
11-50
127
51-200
77
201-500
45
501-1,000
20
1,001-5,000
14
5,001-10,000
2

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for slim hole drilling contractors are linked below.
What qualifies
Company records worldwide whose business descriptions match “slim hole drilling contractors” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 3,773 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Slim hole drilling contractors by location

3 lists · largest first

Every Slim hole drilling contractors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “slim hole drilling contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many slim hole drilling contractors are there worldwide?

RevenueBase identified 393 company matches for slim hole drilling contractors worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Precision Drilling tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most slim hole drilling contractors?

The United States leads with 105 companies, followed by Canada (43) and Australia (27). Every slim hole drilling contractors list by country and city is linked on this page.

Which city has the most slim hole drilling contractors?

Houston leads with 11 company records, followed by Calgary (6) and Ankara (5).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 3,773 professional contacts with verified work emails tracked across these 393 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.